And why does it matter?
You tell me. The submitter gave his reason, you suggested the real reason
might have been

It matters because you, the stickler for grammatical accuracy, asked a
general question (which was triggered by a specific context).

I don't think that in =this= case, something potentially fatal =was=
discovered (although I don't think this =wasn't= the case either - I
simply don't know). It =might= have been the case. I gave a possible
scenario where it =could= have been the case, even in =this= case. It's
exactly what you asked for (even if it might not be what you intended to
ask for).

What do you suppose the controller's response will be?

That depends on the reason the takeoff clearance was immediate, and (if
it's due to incoming traffic) how close it was. Cancelling the takeoff
clearance and telling the landing traffic to go around (if that's what
the issue is) comes to mind.

You're a controller. What would your response be?

Jose
--
The monkey turns the crank and thinks he's making the music.
for Email, make the obvious change in the address.